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《Semiconductor Optoelectronics》 2006-02
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Characteristic of Linear CCD Image and Its Applicability of Identify Arithmetic

XU Xiao-qiu,QIN Yu-fang,HUANG Jie(College of Manufacturing Science and Engineering,Sichuan University,Chengdu 610065,CHN)  
Aimed at the problem that it's difficult to improve the identify precision of the linear CCD scan image,the influence of scan movement on image quality is deeply analyzed,and the key reason resulting in the bad identify precision is pointed out,i.e.,non uniformity of row spacing and the bad repetition of scan location.Based on that,the methodto search the edge spot along the pixel array orientation and to identify the coordinate of the circle center by curve fitting is proposed.This method avoided the influence of scan row spacing on identify precision.It is testified that this method is efficient and the identify precision can arrive at sub-pixel level.
【Fund】: 四川省科技厅应用基础研究项目(04Gy029-003-6);; 四川大学青年基金资助项目
【CateGory Index】: TP391.41;TN386.5
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